hal.dll (Hardware Abstraction Layer DLL) is a component from the software Microsoft(R) Windows (R) 2000 Operating System version 5.0.1 by Microsoft Corporation. hal.dll version 5.0.1 has a file size of 66,080 bytes, and is most commonly found under the directory "$NtServicePackUninstall$" with a creation date of October 17, 2004. This is not a known spyware, adware, or trojan component. Microsoft Windows is the most widely used PC operating system.